A statistical test for detecting answer copying on multiple-choice items is presented. The test is based on the exact null distribution of the number of random matches between two test takers under the assumption that the response process follows a known response model. The null distribution can easily be generalized to the family of distributions…

Two new indices to detect answer copying on a multiple-choice test, S(1) and S(2) (subscripts), are proposed. The S(1) index is similar to the K-index (P. Holland, 1996) and the K-overscore(2), (K2) index (L. Sotaridona and R. Meijer, in press), but the distribution of the number of matching incorrect answers of the source (examinee s) and the…

Practical and effective methods for detecting copying of multiple-choice test responses have been available for many years. These methods have been used routinely by large admissions and licensing testing programs. However, these methods are seldom applied in the areas of standardized or classroom testing in schools or colleges, and knowledge…

In December 2004, the "Amarillo Globe News" reported on a "Dallas Morning News" story that analyzed state-mandated test scores from across Texas (Benton & Hacker, 2004; Wilson, 2004). According the "Amarillo Globe News," "the Dallas Morning News" study implicated Sunrise Elementary School, in Amarillo,…

A study investigated the effectiveness of the Rasch procedure in measuring response appropriateness, especially for the detection of cheating on multiple-choice language tests. The report gives background information on appropriateness measurement and its potential uses, reviews recent research on cheating and its detection, and describes three…